Iodine — Health Professional Fact Sheet

INTRODUCTION Iodine is an essential dietary element which is required for synthesis of the thyroid hormones, thyroxine (T4) and triiodothyronine (T3).

Adverse effects of iodine have also been reported from dietary and nutritional supplements.

The American Thyroid Association and the Endocrine Society[30, 31] have recommended that lactating women take vitamins containing 150 mcg of iodide daily to supplement their dietary intake of iodide. This recommendation stems from NHANES reports of low individual maternal urinary iodide concentrations in women of childbearing age and pregnant woment, although it is not clear that lactating women in the United States are at risk for iodine deficiency.[32]

Iodine Supplements and Foods Rich in Iodine | Dr. Weil

Iodine-containing drugs, mineral dietary supplements, topical medications, and contrast media should be used with caution.

In areas where iodine is not added to the water supply or food products meant for humans or domesticated animals, the primary sources of dietary iodine are saltwater fish, seaweed, and trace amounts in grains. The upper limit of safe daily iodine intake is 1100 mcg/day for adults; it is lower for children.[5, 6, 7, 8]

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Early in the 20th century, the Great Lakes, Appalachian, and northwestern regions of the United States were endemic for iodine deficiency disorders, but since the iodization of salt and other foods in the 1920s, dietary iodine levels generally have been adequate. National survey data suggest that average US dietary iodine intake fell dramatically from 1971-1990 and then stabilized. Urinary iodine values of less than 50 mcg/L, moderate iodine deficiency, are found in 11.1% of the total population, 7.3% of pregnant women, and 16.8% of reproductive-aged women.[10, 11]

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THIS IS COMPLETELY UNTRUE. The RDA was developed for rats and for their thyroid only, not the whole body need for iodine. The Japanese eat 13.8 mg of iodine per day (more than 100 times the US RDA) and have lower risk of breast cancer, ovarian cancer, etc. Iodine was used in standard medical practice to cure cancer and thyroid disease in high doses until the late 1940s, when patented medicine took over- because iodine is cheap and unpatentable, there was a campaign to discredit it. However, read the book by Dr. Brownstein, called "Iodine- Why you need it, Why you can't live without it" for HUNDREDS of citations of studies as to why 96% of the population is not getting enough iodine. Dr. Brownstein has cured patients with cancer and thyroid disease with doses as high as 50mg/day- read his book and you will understand how this works scientifically. I am personally taking 12.5 mg of iodine to treat my Hashimoto's, which had supposedly led to hypothyroidism. Only after reading Dr. Brownstein's book did I realize I did not have hypothyroidism. I went to a lab that tested for iodine deficiency and it came back positive, along with B-12 and Vitamin D deficiencies. I am taking a holistic approach to curing my hypothyroidism and Hashimoto's, including supplements of 12.5 mg iodine/iodide &selenium, tyrosine, Vitamin B12, B2, B3, Vitamin C, trace mineral complex, Magnesium ,and Vitamin D. I have never felt better in my life. The iodine gave me energy from the first day. I got off my meds and I still feel better. However, I am not a medical provider, so go to the source for yourself, Dr. Brownstein. Dr. Jorge Flechas has also successfully treated patients with high dose iodine, for those who have deficiencies. Our bodies need iodine more than ever to flush out the toxic fluoride and bromide, the other halogens that have contaminated our bodies. Read this book, check out their medical lectures on youtube, and decide for yourself. In the book, Dr. Brownstein explains the fallacy of the Wolff-Chaikov effect, which was used to discredit iodine, but which only lasts (26-40 hours) as the body is just adjusting from an iodine deficient state to a non-deficient state. Also, see Wolff's paper himself, that shows it is temporary: Wolff, J. "The temporary nature of the inhibitory action of excess iodide on organic iodine synthesis in the normal thyroid." Endocrin 45:504, 1949. All the research is in the book. The medical establishment doesn't want people to know about iodine as it would cost them a lot of money in unsold medicine. Remember also in the 1940s the campaign to teach people to take fluoride, which the American Dental Association had previously been trying to eradicate? It was all shown to tie into a huge government cover-up (because of the need for atom bombs that used uranium hexafluoride and would have incited worker's comp claims of epic proportions.) Read "the Fluoride Deception" for all the evidence. Iodine is the most misunderstood mineral, even more than fluoride. Also, salt is a very poor way to get iodine into the body (see Brownstein's research on how poor the bio-availabity is), so eating iodized salt is not a good idea. All you need is a supplement.

Scientific Opinion on Dietary Reference Values for iodine

In addition to dietary sources, various mineral supplements and medical preparations can further increase iodine intake to a significant extent (Skare & Frey, 1980; Philippe et al., 1986; Dela Cruz et al., 1987).